All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
J. Rickards Winery Sonoma County |
38 | 0 | 0 | |
|
Jonata Homeowners Association Santa Barbara County |
38 | 0 | 0 | |
|
Lambert Bridge Winery Healdsburg · Sonoma County |
38 | 0 | 0 | |
|
Lhoist North America WS Monterey County |
38 | 1 | 0 | |
|
Little Lake Mobile Home Park Mendocino County |
38 | 0 | 0 | |
|
Lower East Austin Creek Sonoma County |
38 | 0 | 0 | |
|
Maeen K Yahya Madera County |
38 | 0 | 0 | |
|
Markham Vineyards Napa County |
38 | 0 | 0 | |
|
Mayacamas Vineyards Napa County |
38 | 0 | 0 | |
|
Oxnard Pallet Company Ventura County |
38 | 1 | 0 | |
|
Promontory Winery Napa County |
38 | 0 | 0 | |
|
Rancho los Mochos-Bsa Camp Alameda County |
38 | 0 | 0 | |
|
Red Bluff Fish & Wildlife Office Tehama County |
38 | 0 | 0 | |
|
Rosario Park Santa Barbara County |
38 | 0 | 0 | |
|
Santa Anita Mutual Water Company Santa Barbara County |
38 | 0 | 0 | |
|
Seghesio Farms Sonoma County |
38 | 0 | 0 | |
|
Sheridan Road Mutual Water Association San Luis Obispo County |
38 | 1 | 1 | |
|
Spider Web Ranch Sonoma County |
38 | 0 | 0 | |
|
Stonebridge Mutual Water CO Santa Clara County |
38 | 0 | 0 | |
|
Sunset Moulding Chico Butte County |
38 | 0 | 0 | |
|
Sandoval MHP County |
38 | 5 | 1 | |
|
Terra de Oro Water Company San Luis Obispo County |
38 | 0 | 0 | |
|
Timber Cove Inn Sonoma County |
38 | 0 | 0 | |
|
Tioga Lodge Mono County |
38 | 0 | 0 | |
|
Verite Winery Sonoma County |
38 | 0 | 0 | |
|
Whispering Pines MHP Madera County |
38 | 0 | 0 | |
|
Yosemite Alpine Csd Mariposa County |
38 | 1 | 0 | |
|
Bear Mountain Pizza Fresno County |
37 | 0 | 0 | |
|
Bouchaine Vineyards Napa County |
37 | 1 | 0 | |
|
Bud Fine Mwc Trinity County |
37 | 2 | 1 | |
|
Calenergy (salton Sea Unit NO Iii) Imperial County |
37 | 0 | 0 | |
|
Carriere Family Farms Glenn County |
37 | 0 | 0 | |
|
Colorado Mutual Water Company Los Angeles County |
37 | 1 | 1 | |
|
Courage to Change Tulare County |
37 | 1 | 1 | |
|
DI Rosa Art Preserve Napa County |
37 | 1 | 0 | |
|
Dirty Bird H2o Bakersfield · Kern County |
37 | 0 | 0 | |
|
Family Food Center Madera County |
37 | 0 | 0 | |
|
Fedex Freight, Inc. Chi Butte County |
37 | 0 | 0 | |
|
Firestone Vineyard Santa Barbara County |
37 | 0 | 0 | |
|
Foley Johnson Winery Napa County |
37 | 0 | 0 | |
|
Iid Village Imperial County |
37 | 0 | 0 | |
|
Jjapt Bloomfield Sonoma County |
37 | 0 | 0 | |
|
Mauritson Labor House Sonoma County |
37 | 0 | 0 | |
|
Mending Wall Winery Napa County |
37 | 0 | 0 | |
|
Merced New Life School Merced County |
37 | 0 | 0 | |
|
Meridian RD WS #09 Monterey County |
37 | 1 | 1 | |
|
Palisade Glacier High School Inyo County |
37 | 0 | 0 | |
|
Patterson Cemetery District Patterson · Stanislaus County |
37 | 0 | 0 | |
|
Pennyroyal Farm Mendocino County |
37 | 0 | 0 | |
|
Ratna Ling Retreat Sonoma County |
37 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The California records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.